CA 3 ( PO 4 ) 2 → Ρ → Ρ 2 Ο 5 → H 3 ΡΟ 4 → NAH 2 PO 4 → NA 2 HPO 4...

2. - KIEM TRA NITO PHOTPHO
KIEM TRA NITO PHOTPHO

2. Ca 3 ( PO 4 ) 2 → Ρ → Ρ 2 Ο 5 → H 3 ΡΟ 4 → NaH 2 PO 4 → Na 2 HPO 4 → Na 3 PO 4

(7)